Catppuccin Mocha with these changes:

black/grayscale version of mocha catppuccin theme.

|color|mocha|coal|
|---|---|---|
|Text|#cdd6f4|#e0e0e0
|Subtext1|#bac2de|#cccccc|
|Subtext0|#a6adc8|#b8b8b8|
|Overlay2|#9399b2|#a3a3a3|
|Overlay1|#7f849c|#8c8c8c|
|Overlay0|#6c7086|#787878|
|Surface2|#585b70|#636363|
|Surface1|#45475a|#4f4f4f|
|Surface0|#313244|#3b3b3b|
|Base|#1e1e2e|#262626|
|Mantle|#181825|#1f1f1f|
|Crust|#11111b|#171717|


Sed command
```sh
sed -i '' 's/#cdd6f4/#e0e0e0/g; s/#bac2de/#cccccc/g; s/#a6adc8/#b8b8b8/g; s/#9399b2/#a3a3a3/g; s/#7f849c/#8c8c8c/g; s/#6c7086/#787878/g; s/#585b70/#636363/g; s/#45475a/#4f4f4f/g; s/#313244/#3b3b3b/g; s/#1e1e2e/#262626/g; s/#181825/#1f1f1f/g; s/#11111b/#171717/g' filename
```